At 250 ft (76.2 m), the main span of Highland View Bridge - a 2600 ft (793 m) long precast, prestressed concrete structure on U.S. 98 over the Gulf Intracoastal Waterway in Florida - is the longest concrete girder span ever constructed in the United States. This record span was achieved with the use of continuous precast post-tensioned concrete bulb-tee girders combined with a spliced drop-in girder. This article discusses the competitive bidding, design considerations, production and construction operations, and erected cost of the bridge. With this experience, it is expected that even longer span precast, prestressed concrete bridges will be constructed in the near future.
